GeezerVison

… (python#160261)

(cherry picked from commit 0071fb5)
(cherry picked from commit 25f598d)

Co-authored-by: Petr Viktorin <[email protected]>
(cherry picked from commit b370d7a)

3.10.22.x: 3.10 builds the bundled expat from setup.py, not from
LIBEXPAT_OBJS in Makefile.pre.in, so xcs.c is added to setup.py's
expat_sources (and xcs.h to expat_depends) instead.

… (python#160261)

(cherry picked from commit 0071fb5)
(cherry picked from commit 25f598d)

Co-authored-by: Petr Viktorin <[email protected]>
(cherry picked from commit b370d7a)

3.10.22.x: 3.10 builds the bundled expat from setup.py, not from
LIBEXPAT_OBJS in Makefile.pre.in, so xcs.c is added to setup.py's
expat_sources (and xcs.h to expat_depends) instead.

(cherry picked from commit 95dadd7)

3.9.25.x: 3.9's pyexpat predates the module-state error helpers
(set_xml_error / SET_XML_ERROR), so the 64-bit line/column switch is
applied to 3.9's set_error() directly: it now reads
EXPAT_GetCurrent{Line,Column}Number (XML_GetError{Line,Column}Number
are aliases of the current-position getters in expat), formats them
with %llu, and stores them through a new set_error_attr_location()
that uses PyLong_FromUnsignedLongLong().